The Ames Police Department is investigating acts of vandalism that left swastikas and racial slurs spray painted on vehicles. The vandalism took place over the past few weeks, according to a news release from Ames police. Reports have been taken from residents in the 100 block of Crystal Street, the 200 and 300 blocks of South Fifth Street, the 1600 block of South Kellogg Avenue and the 2800 block of Grand Avenue.